gmp_sign
gmp_sign
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_sign — Sign of number
Description
int gmp_sign ( GMP $a )
Checks the sign of a number.
Parameters
Return Values
Returns 1 if a is positive, -1 if a is negative, and 0 if a is zero.
Examples
Example #1 gmp_sign() example
<?php
// positive
echo gmp_sign("500") . "\n";
// negative
echo gmp_sign("-500") . "\n";
// zero
echo gmp_sign("0") . "\n";
?> The above example will output:
1 -1 0
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.gmp-sign.php
